S = 165 + 215
=> S = 220 + 215
=> S = 215.(25 + 1)
=> S = 215.33 \(⋮\)33 (đpcm)
Ta có \(S=16^5+2^{15}\)
\(S=\left(2^4\right)^5+2^{15}\)
\(S=2^{20}+2^{15}\)
\(S=2^{15}.\left(2^5+1\right)\)
\(S=2^{15}\left(32+1\right)\)
\(S=2^{15}.33⋮33\)
Vậy \(S=16^5+2^{15}\)chia hết cho 33